In the Linux kernel, the following vulnerability has been resolved:
md/raid1: Fix stack memory use after return in raid1_reshape
In the raid1_reshape function, newpool is
allocated on the stack and assigned to conf->r1bio_pool.
This results in conf->r1bio_pool.wait.head pointing
to a stack address.
Accessing this address later can lead to a kernel panic.
Example access path:
raid1_reshape()
{
// newpool is on the stack
mempool_t newpool, oldpool;
// initialize newpool.wait.head to stack address
mempool_init(&newpool, ...);
conf->r1bio_pool = newpool;
}
raid1_read_request() or raid1_write_request()
{
alloc_r1bio()
{
mempool_alloc()
{
// if pool->alloc fails
remove_element()
{
--pool->curr_nr;
}
}
}
}
mempool_free()
{
if (pool->curr_nr < pool->min_nr) {
// pool->wait.head is a stack address
// wake_up() will try to access this invalid address
// which leads to a kernel panic
return;
wake_up(&pool->wait);
}
}
Fix:
reinit conf->r1bio_pool.wait after assigning newpool.
References
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
History
22 Dec 2025, 21:53
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:* |
|
| CWE | CWE-125 | |
| References | () https://git.kernel.org/stable/c/12b00ec99624f8da8c325f2dd6e807df26df0025 - Patch | |
| References | () https://git.kernel.org/stable/c/48da050b4f54ed639b66278d0ae6f4107b2c4e2d - Patch | |
| References | () https://git.kernel.org/stable/c/5f35e48b76655e45522df338876dfef88dafcc71 - Patch | |
| References | () https://git.kernel.org/stable/c/61fd5e93006cf82ec8ee5c115ab5cf4bbd104bdb - Patch | |
| References | () https://git.kernel.org/stable/c/776e6186dc9ecbdb8a1b706e989166c8a99bbf64 - Patch | |
| References | () https://git.kernel.org/stable/c/d67ed2ccd2d1dcfda9292c0ea8697a9d0f2f0d98 - Patch | |
| References | () https://git.kernel.org/stable/c/d8a6853d00fbaa810765c8ed2f452a5832273968 - Patch | |
| References | () https://git.kernel.org/stable/c/df5894014a92ff0196dbc212a7764e97366fd2b7 - Patch | |
| References | () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - Third Party Advisory | |
| References | () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - Third Party Advisory | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.1 |
| First Time |
Linux
Debian Debian debian Linux Linux linux Kernel |
03 Nov 2025, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
29 Jul 2025, 14:14
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
|
25 Jul 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-07-25 16:15
Updated : 2025-12-22 21:53
NVD link : CVE-2025-38445
Mitre link : CVE-2025-38445
CVE.ORG link : CVE-2025-38445
JSON object : View
Products Affected
debian
- debian_linux
linux
- linux_kernel
CWE
CWE-125
Out-of-bounds Read